package main

import (
	"fmt"
	"os"
	"strconv"
	"time"
)

func main() {
	start := time.Now()
	s, sep := "", ""
	for i, arg := range os.Args[1:] {
		s += sep + strconv.Itoa(i) + "->" + arg
		sep = " "
	}
	fmt.Println(s)
	ms := time.Now().Sub(start).Milliseconds()
	fmt.Printf("用时:  %d ms", ms)
}
